Question : Making a subform out of separate form

I have inserted a "Client Details" form into the form "Calls to Clients". The form "Calls to Clients" displays call information from the Query "LastCall". One of the Fields displayed is the ClientID (ie. LastCall.ClientID). The form "Client Details" displays fields from the Table "Clients", one of them being the ClientID (ie. Clients.ClientID).

I want the form "Client Detail" to behave like a subform of the 'main' form "Calls to Clients", based on the ClientID of the record selected in "Calls to Clients".

What code/macro do I need to use to link the two?

Answer : Making a subform out of separate form

open the form  "Calls to Clients" in design view
click on the outer edge of the subform, then hit F4 to open the Property sheet
select the Data tab